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United States Department of Agriculture

Agricultural Research Service

Title: Soil Moisture and Vegetation Observations During Sgp99 Using the Pals Airborne Microwave Radiometer

Authors
item Njoku, Eni - NASA JPL
item Wilson, William - NASA JPL
item Yueh, Simon - NASA JPL
item Jackson, Thomas
item Lakshmi, Venkat - UNIVERSITY OF S. C.

Submitted to: Geoscience and Remote Sensing Symposium Proceedings
Publication Type: Proceedings
Publication Acceptance Date: May 17, 2000
Publication Date: N/A

Technical Abstract: The Passive/Active L/S-band (PALS) airborne microwave sensor was flown for the first time during the 1999 Southern Great Plains (SPG99) Experiment. The objective was to acquire a data set for studying a combined radiometer-radar-radar multifrequency, multi-polarization approach to soil moisture sensing under varied terrain conditions. Six days of PALS flight data were acquired over the Little Washita and El Reno areas in Oklahoma, in conjunction with ground-based soil and vegetation in-situ sampling. The data illustrate the different sensitivities of the PALS channels to soil moisture, temperature, surface roughness, and vegetation cover. This will provide a basis for development of passive and active multi-channel algorithms for soil moisture sensing.

Last Modified: 8/30/2014
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